User manual

18
User manual
ENG
Symbol Description
Devices connected to communication port com.
Room unit DD2+ is connected. The number beside room unit indi-

Burner interface or Junkers/Vaillant inteface is connected.
State of the controller in bus connection.
Standalone controller - not in bus network.

Intermediate controller in bus network.
The last controller in bus network.
SYMBOLS FOR THE INDICATION OF COMMUNICATION BETWEEN DEVICES
Symbol Description
Accumulator overheating protection.
D. h. w. storage tank overheating protection.
D. h. w. storage tank overheating protection - cooling directed into the
boiler.
D. h. w. storage tank overheating protection - cooling directed into the
collectors.
Frost protection - heating circuit.
Frost protection - boiler switch-on to minimum temperature.